From mboxrd@z Thu Jan 1 00:00:00 1970 From: shijie.huang@arm.com (Huang Shijie) Date: Wed, 30 Nov 2016 14:30:31 +0800 Subject: [PATCH extra ] mm: hugetlb: add description for alloc_gigantic_page() In-Reply-To: <1479107259-2011-1-git-send-email-shijie.huang@arm.com> References: <1479107259-2011-1-git-send-email-shijie.huang@arm.com> Message-ID: <1480487431-26181-1-git-send-email-shijie.huang@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org This patch adds the description for function alloc_gigantic_page(). Signed-off-by: Huang Shijie --- mm/hugetlb.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 3faec05..0d4bb8a 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1089,6 +1089,12 @@ static bool zone_spans_last_pfn(const struct zone *zone, return zone_spans_pfn(zone, last_pfn); } +/* + * Allocate a gigantic page from @nid node. + * + * Scan the zones of @nid node, and try to allocate a number of contiguous + * pages (1 << order). + */ static struct page *alloc_gigantic_page(int nid, unsigned int order) { unsigned long nr_pages = 1 << order; -- 2.5.5